[HN] Coffee grounds make concrete 30% stronger
[HN] Coffee grounds make concrete 30% stronger
www.rmit.edu.au Coffee offers performance boost for concrete
Engineers in Australia have found a way of making stronger concrete with roasted used-coffee grounds, to give the drink-additive a “double shot” at life.
[ comments | sourced from HackerNews ]
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Continuing the tradition of adding trash to concrete in hopes of doing something with it.